Years ago, the fearsome Pirate King, Gol D. Roger was executed leaving a huge pile of treasure and the famous "One Piece" behind. Whoever claims the "One Piece" will be named the new King of the Pirates. Monkey D. Luffy, a boy who consumed a "Devil Fruit," decides to follow in the footsteps of his idol, the pirate Shanks, and find the One Piece. It helps, of course, that his body has the properties of rubber and that he's surrounded by a bevy of skilled fighters and thieves to help him along the way. Luffy will do anything to get the One Piece and become King of the Pirates!
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Monkey D. Luffy meets the Red Hair Pirates as a young boy living in East Blue, swearing becoming the next Pirate King. 10 years later, Luffy sets sail and experiences first adventures, recruiting the first members of the Straw Hat Pirates.
With a Log Pose now in hand, the Straw Hat Pirates are directed toward Whisky Peak, a town that welcomes pirates with open arms and treats them like celebrities. However, the townsfolk have a dark secret, and an even deeper mystery awaits.Now with Vivi in tow, the Straw Hat Pirates travel to the prehistoric island of Little Garden. There, they encounter two Giants, Dorry and Brogy, who have been dueling one another on the island for the past century. After befriending the giants, the crew are ambushed by new and familiar officers of Baroque Works.
After Nami falls ill with an unknown disease, the Straw Hat Pirates travel to Drum Island in search of a doctor. The crew meets a bizarre talking reindeer named Tony Tony Chopper, who helps them fend off the country's former despot king Wapol after he returns to reclaim his throne.
The Straw Hats, with Kureha's assistant Tony Tony Chopper, finally arrive at Arabasta, which is on the verge of civil war. Vivi must reach the rebels and tell them the real cause behind the conflict, but Crocodile, leader of Baroque Works and one of the Seven Warlords of the Sea, will not just stand by and watch. In the end, Baroque Works, marine forces, pirates, the royal guards, and the rebel army clash in a battle that will determine the fate of the country itself.
While on the run from some Marines, the crew stumble upon an island inhabited by a man named Zenny who lives with a herd of goats. The crew set out to him in his seemingly final days. After evading some Marines, the crew stop off in a small town with a huge tower, which is also being oppressed by the Mayor whose overtaxing the citizens. But a bigger concern is a nearby mist that prevents anyone who enters it from leaving.
The Straw Hats arrive on the Sky Island Skypiea and learn of its connections to Jaya and Mont Blanc Noland's tale of a lost city of gold. As the crew embarks in search of treasure, they become entangled in a three-way war between the native Skypieans, the vengeful Shandians, and the land's cruel "god", Enel.